WO2015039824A1 - Machine tool with a cover hood which is guided in a movable manner on a slide guiding rail - Google Patents

Machine tool with a cover hood which is guided in a movable manner on a slide guiding rail Download PDF

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Publication number
WO2015039824A1
WO2015039824A1 PCT/EP2014/067658 EP2014067658W WO2015039824A1 WO 2015039824 A1 WO2015039824 A1 WO 2015039824A1 EP 2014067658 W EP2014067658 W EP 2014067658W WO 2015039824 A1 WO2015039824 A1 WO 2015039824A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
guide rail
machine tool
guide
carriage
Prior art date
Application number
PCT/EP2014/067658
Other languages
German (de)
French (fr)
Inventor
Dominik Widmann
Dietrich Sauter
Original Assignee
Trumpf Laser- Und Systemtechnik Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trumpf Laser- Und Systemtechnik Gmbh filed Critical Trumpf Laser- Und Systemtechnik Gmbh
Priority to KR1020167009122A priority Critical patent/KR102110012B1/en
Priority to CN201480051209.9A priority patent/CN105556143B/en
Publication of WO2015039824A1 publication Critical patent/WO2015039824A1/en
Priority to US15/072,568 priority patent/US10265820B2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/0875—Wipers for clearing foreign matter from slideways or slidable coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/012—Portals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/015—Frames, beds, pillars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/08—Arrangements for covering or protecting the ways
    • F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
    • F16C29/086—Seals being essentially U-shaped, e.g. for a U-shaped carriage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/08—Arrangements for covering or protecting the ways
    • F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
    • F16C29/088—Seals extending in the longitudinal direction of the carriage or bearing body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators

Definitions

  • Machine tool with one on a carriage guide rail
  • the invention relates to a machine tool, in particular a laser processing machine, with a movable along a guide rail workpiece or tool carriage having at least two movable on the guide rail guide carriage, and with a mitvonden with the carriage cover for covering the located between the two carriage rail section of the guide rail ,
  • a machine tool is also understood to mean a laser processing machine in which a laser beam emerges from a laser processing head which is fastened to a movable carriage and forms the laser tool.
  • Carriage of a machine tool are often performed with ball or roller circulation units along a guide rail.
  • the guide systems used consist of the guide rail and one or more carriages. Larger tool slides are generally guided on two guide rails, with two or more guide carriages being arranged on each guide rail.
  • the carriages are sealed to the guide rail by radial and Lijnsabstreifer to prevent ingress of dirt in the carriages. Dirt falling onto the guide rail outside of the slides is taken along by the outer radial wipers of the guide carriages and deposited at the end of the rail. This deposited on the rail end dirt is no longer run over by the carriage and thus can not get into a carriage.
  • Cover rail section of guide rail The covers are usually made of steel and have inside rubber lips as longitudinal and Radialabstreifer. at However, the relatively complex assembly and disassembly of the cover can cause damage to the cover or the adjacent construction.
  • the cover is a separate part, which is mounted independently of the carriage and its two carriages on the guide rail, which greatly facilitates the disassembly of the cover and the carriage from the guide rail and excludes damage to the cover or the adjacent construction.
  • the cover encloses the guide rail and seals to the guide rail out, so that no dirt can get on the located between the two carriages rail section of the guide rail.
  • the cover can be formed of any material, in particular of metal.
  • the cover is guided displaceably in lateral guide grooves of the guide rail.
  • the cover is not guided on the same guide grooves on which the carriages are performed, but in addition to the running surfaces, which are provided for guiding the carriage. This prevents dirt particles or cutting dust digging into the material of the cover and exercise an effect similar to sandpaper, so that the cover wears.
  • the cover surrounds the guide rail laterally and completely covers with its two side walls at least the lateral guide grooves of the two carriages.
  • the cover is under elastic spreading of the two free longitudinal ends of its side walls on the guide rail, so that the
  • the cover is made of plastic. Due to the elastic spring effect of the plastic sealing edges of the cover are pressed against the guide rail and compensated for any wear. Covering plastic, cost after amortization of the tool, considerably cheaper than other known solutions. Plastic covers are also considerably lighter than known covers, whereby the mass of the machine structure to be accelerated is reduced. Plastic covers can be made of only one material, which combines all the different requirements for the functions of the cover in itself. For example, a cover made of steel requires a sealing lip made of rubber, since steel has too little spring effect to achieve a sealing effect with respect to the guide rail.
  • the cover is advantageously formed by a plastic extruded profile which is snapped onto the guide rail or pushed over the end-face rail end on the guide rail.
  • FIG. 1 shows a laser processing machine according to the invention
  • Fig. 2 is a side view of a movable along a guide rail
  • Fig. 3 is an end view of the slidably guided on the guide rail cover.
  • a processing machine 1 is shown in perspective, showing the structure of a laser cutting machine as an embodiment of a laser processing machine. Further exemplary embodiments are, for example, a laser welding machine or a combined punching / laser cutting machine.
  • This processing machine 1 has, for example, a CO2 laser, diode laser or solid-state laser as laser beam generator 2, a movable laser processing head 3 and a workpiece support 4.
  • a laser beam 5 is generated, which is guided by means of a (not shown) optical fiber cable or (not shown) deflecting mirror from the laser 2 to the machining head 3.
  • a workpiece 6 is arranged on the workpiece support 4.
  • the laser beam 5 is directed onto the workpiece 6 by means of a focusing optic arranged in the machining head 3.
  • the processing machine 1 is also supplied with process gases 7, for example oxygen and nitrogen. Alternatively or additionally, compressed air or application-specific gases may be provided. The use of the individual gases depends on the material of the workpiece 6 to be machined and on the quality requirements of the cut edges.
  • a suction device 8 is present, which is connected to a suction channel 9, which is located under the workpiece support 4.
  • the process gas 7 is supplied to a process gas nozzle 10 of the machining head 3, from which it emerges together with the laser beam 5. As shown in FIG.
  • the machining head 3 is fastened to a carriage 12 which can be moved along a horizontal guide rail 11 and has two guide carriages 13a, 13b which are movably guided on the guide rail 11.
  • a covering hood 14 made of plastic, which is entrained with the carriage 12, serves to cover the rail section of the guide rail 11 which is located between the two guide carriages 13a, 13b.
  • the cover 14 is connected neither to the carriage 12 nor to the guide carriages 13a, 13b, but to a separate part, which is displaceably guided on the guide rail 11 between the two carriages 13a, 13b.
  • the cover 14 is in each case of the rear guide carriage in the direction of displacement in Verschieberich- taken along. If, for example, in FIG. 2 the carriage 12 is displaced to the right, for example, then the covering hood 14 is carried along to the right by the left guide carriage 13a. If the carriage 12 is moved to the left, the cover 14 is taken from the right guide carriage 13b to the left.
  • the cover 14 surrounds the guide rail 1 1 side and covers with its two side walls 15, the lateral running surfaces 16 of the guide rail 1 1, along which the carriages 13 a, 13 b are guided, completely.
  • the side walls 15 have inwardly projecting or angled guide projections 17, which engage in lateral guide grooves 18 of the guide rail 1 1 and are guided displaceably therein.
  • the carriages 13a, 13b and the cover 14 are therefore guided on different guides of the guide rail 1 1.
  • the cover 14 is preferably a plastic extruded profile, which can be plugged by means of its guide projections 17 either from the top of the guide rail 1 1 latching or pushed over the end-side rail end on the guide rail 1 1.
  • the cover 14 lies, with elastic spreading of the two free longitudinal ends 19 of its side walls 15, with the longitudinal inner edges 20 of the free L jossen- the 19 on the guide rail 1 1 at.
  • the longitudinal inner edges 20 thus form sealing edges or Leksabstreifer which are pressed by the restoring force of the elastically spread longitudinal ends 19 of the guide rail 1 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

The invention relates to a machine tool (1), in particular a laser-working machine, comprising a workpiece or tool slide (12) which can be moved along a guiding rail (11) and which has at least two guided carriages (13a, 13b) that are guided on the guiding rail (11) and comprising a cover hood (14), which is moved together with the slide (12), for covering the guiding rail (11) portion which can be found between the two guided carriages (13a, 13b). According to the invention, the cover hood (14) is a part which is not connected to the slide (12), is guided in a movable manner between the two guided carriages (13a, 13b) on the guiding rail (11), and is carried in the movement direction during a movement of the slide (12) by the respective rear guide carriage when seen in the movement direction.

Description

Werkzeugmaschine mit einer auf einer Schlitten-Führungsschiene  Machine tool with one on a carriage guide rail
verschiebbar geführten Abdeckhaube  slidably guided cover
Die Erfindung betrifft eine Werkzeugmaschine, insbesondere Laserbearbeitungsmaschine, mit einem entlang einer Führungsschiene verfahrbaren Werkstück- oder Werkzeugschlitten, der mindestens zwei auf der Führungsschiene verfahrbar geführte Führungswagen aufweist, und mit einer mit dem Schlitten mitverfahrenden Abdeckhaube zum Abdecken des zwischen den beiden Führungswagen befindlichen Schienenabschnitts der Führungsschiene. Unter einer Werkzeugmaschine wird im Rahmen der Erfindung auch eine Laserbearbeitungsmaschine verstanden, bei welcher ein Laserstrahl aus einem Laserbearbeitungskopf austritt, der an einem verfahrbaren Schlitten befestigt ist und das Laserwerkzeug bildet. The invention relates to a machine tool, in particular a laser processing machine, with a movable along a guide rail workpiece or tool carriage having at least two movable on the guide rail guide carriage, and with a mitverfahrenden with the carriage cover for covering the located between the two carriage rail section of the guide rail , In the context of the invention, a machine tool is also understood to mean a laser processing machine in which a laser beam emerges from a laser processing head which is fastened to a movable carriage and forms the laser tool.
Schlitten einer Werkzeugmaschine werden häufig mit Kugel- oder Rollenumlaufeinheiten entlang einer Führungsschiene geführt. Die dabei eingesetzten Führungssysteme bestehen aus der Führungsschiene und einem oder mehreren Führungswagen. Größere Werkzeugschlitten werden in der Regel an zwei Führungs- schienen geführt, wobei auf jeder Führungsschiene zwei oder mehr Führungswagen angeordnet sind. Die Führungswagen werden zur Führungsschiene hin durch Radial- und Längsabstreifer abgedichtet, die ein Eindringen von Schmutz in die Führungswagen verhindern sollen. Schmutz, der außerhalb der Schlitten auf die Führungsschiene fällt, wird von den außenliegenden Radialabstreifern der Füh- rungswagen mitgenommen und am Schienenende abgelagert. Dieser am Schienenende abgelagerte Schmutz wird vom Führungswagen nicht mehr überfahren und kann somit nicht in einen Führungswagen gelangen. Schmutz, der zwischen zwei Führungswagen gelangt, kann nicht an das Schienenende transportiert werden, sondern wird bei der Bewegung des Schlittens in einer Richtung vom Radial- abstreifer des einen Führungswagens mitgenommen und auf der Führungsschiene abgelagert. Wenn sich der Schlitten in die entgegengesetzte Richtung bewegt, wird der Schmutz vom Radialabstreifer des anderen Führungswagens mitgenommen. Somit wird der Schmutz zwischen den Führungswagen hin- und hergeschoben. Durch das Verdrängen des Schmutzes werden die Radialabstreifer stark be- lastet und verschleißen schnell, so dass der Schmutz an den Radial-Abstreifern vorbei ins Innere der Führungswagen gelangt und die kompletten Führungswagen ausfallen können. Es kann sehr aufwändig sein, die Führungswagen auszutauschen. Um zu verhindern, dass Schmutz zwischen den beiden Führungswagen auf dieCarriage of a machine tool are often performed with ball or roller circulation units along a guide rail. The guide systems used consist of the guide rail and one or more carriages. Larger tool slides are generally guided on two guide rails, with two or more guide carriages being arranged on each guide rail. The carriages are sealed to the guide rail by radial and Längsabstreifer to prevent ingress of dirt in the carriages. Dirt falling onto the guide rail outside of the slides is taken along by the outer radial wipers of the guide carriages and deposited at the end of the rail. This deposited on the rail end dirt is no longer run over by the carriage and thus can not get into a carriage. Dirt that gets between two guide carriages can not be transported to the end of the rail, but is taken along by the radial scraper of one carriage when the carriage moves in one direction and deposited on the guide rail. If the carriage moves in the opposite direction, the dirt from the Radialabstreifer the other carriage is taken. Thus, the dirt between the carriages is pushed back and forth. By displacing the dirt, the radial wipers are heavily loaded and wear out quickly, so that the dirt on the radial wipers passes into the interior of the guide carriages and the complete guide carriages can fail. It can be very complicated to exchange the carriages. To prevent dirt between the two carriages on the
Führungsschiene gelangt, sind Abdeckhauben bekannt (z.B. JP2006317006), die an den beiden Führungswagen montiert sind und den dazwischen befindlichen Guide rail passes, covers are known (for example, JP2006317006), which are mounted on the two carriages and the intervening
Schienenabschnitt der Führungsschiene abdecken. Die Abdeckhauben sind meist aus Stahl und haben innenseitige Gummi-Lippen als Längs- und Radialabstreifer. Bei der relativ aufwändigen Montage und Demontage der Abdeckhaube kann es allerdings zu Beschädigungen der Abdeckhaube bzw. der Anschlusskonstruktion kommen. Cover rail section of guide rail. The covers are usually made of steel and have inside rubber lips as longitudinal and Radialabstreifer. at However, the relatively complex assembly and disassembly of the cover can cause damage to the cover or the adjacent construction.
Es ist demgegenüber die Aufgabe der Erfindung, bei einer Werkzeugmaschine der eingangs genannten Art die Montage und Demontage der Abdeckhaube zu erleichtern und Beschädigungen der Abdeckhaube bzw. der Anschlusskonstruktion zu verhindern. It is the object of the invention to facilitate in a machine tool of the type mentioned in the assembly and disassembly of the cover and to prevent damage to the cover or the adjacent construction.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Abdeckhaube ein nicht mit dem Schlitten verbundenes Teil ist, das zwischen den beiden Führungswa- gen auf der Führungsschiene verschiebbar geführt ist und bei einer Verschiebung des Schlittens jeweils von dem in Verschieberichtung hinteren Führungswagen in Verschieberichtung mitgenommen wird. This object is achieved in that the cover is not connected to the carriage part, which is slidably guided on the guide rail between the two carriages and is taken along with a displacement of the carriage in each case by the rear carriage in the direction of displacement in the direction of displacement.
Erfindungsgemäß ist die Abdeckhaube ein separates Teil, das unabhängig vom Schlitten und seinen beiden Führungswagen auf der Führungsschiene montiert ist, was die Demontage der Abdeckhaube und der Führungswagen von der Führungsschiene erheblich erleichtert und Beschädigungen der Abdeckhaube bzw. der Anschlusskonstruktion ausschließt. Die Abdeckhaube umschließt die Führungsschiene und dichtet zur Führungsschiene hin ab, wodurch kein Schmutz auf den zwischen den beiden Führungswagen befindlichen Schienenabschnitt der Führungsschiene gelangen kann. Die Abdeckhaube kann aus jedwedem Material gebildet sein, insbesondere auch aus Metall. According to the invention the cover is a separate part, which is mounted independently of the carriage and its two carriages on the guide rail, which greatly facilitates the disassembly of the cover and the carriage from the guide rail and excludes damage to the cover or the adjacent construction. The cover encloses the guide rail and seals to the guide rail out, so that no dirt can get on the located between the two carriages rail section of the guide rail. The cover can be formed of any material, in particular of metal.
Bevorzugt ist die Abdeckhaube in seitlichen Führungsnuten der Führungsschiene verschiebbar geführt. Insbesondere ist die Abdeckhaube nicht an denselben Führungsnuten geführt, an denen auch die Führungswagen geführt sind, sondern neben den Laufflächen, welche zur Führung der Führungswagen vorgesehen sind. Dadurch wird verhindert, dass Schmutzpartikel bzw. Schneidstaub sich in das Material der Abdeckhaube eingraben und einen Effekt ähnlich wie Schleifpapier ausüben, so dass die Abdeckhaube verschleißt. Die Abdeckhaube umgreift die Führungsschiene seitlich und deckt mit ihren beiden Seitenwänden mindestens die seitlichen Führungsnuten der beiden Führungswagen vollständig ab. Preferably, the cover is guided displaceably in lateral guide grooves of the guide rail. In particular, the cover is not guided on the same guide grooves on which the carriages are performed, but in addition to the running surfaces, which are provided for guiding the carriage. This prevents dirt particles or cutting dust digging into the material of the cover and exercise an effect similar to sandpaper, so that the cover wears. The cover surrounds the guide rail laterally and completely covers with its two side walls at least the lateral guide grooves of the two carriages.
Vorzugsweise liegt die Abdeckhaube unter elastischer Aufspreizung der beiden freien Längsenden ihrer Seitenwände an der Führungsschiene an, damit die Preferably, the cover is under elastic spreading of the two free longitudinal ends of its side walls on the guide rail, so that the
Längsinnenkanten der freien Längsenden als Dichtkanten bzw. Längsabstreifer an die Führungsschiene angedrückt werden. Besonders bevorzugt ist die Abdeckhaube aus Kunststoff gebildet. Durch die elastische Federwirkung des Kunststoffs werden die Dichtkanten der Abdeckhaube an die Führungsschiene angedrückt und eventueller Verschleiß kompensiert. Abdeckhauben aus Kunststoff sind, nach Amortisation der Werkzeug kosten, erheblich kostengünstiger als andere bekannte Lösungen. Abdeckhauben aus Kunststoff sind auch erheblich leichter als bekannte Abdeckhauben, wodurch die zu beschleunigende Masse der Maschinenstruktur reduziert wird. Abdeckhauben aus Kunststoff lassen sich aus nur einem Werkstoff herstellen, der alle unterschiedlichen Anforderungen an die Funktionen der Abdeckhaube in sich vereint. So benötigt beispielsweise eine Abdeckhaube aus Stahl eine Dichtlippe aus Gummi, da Stahl eine zu geringe Federwir- kung hat, um eine Dichtwirkung gegenüber der Führungsschiene zu erzielen. Longitudinal edges of the free longitudinal ends are pressed against the guide rail as sealing edges or Längsabstreifer. Particularly preferably, the cover is made of plastic. Due to the elastic spring effect of the plastic sealing edges of the cover are pressed against the guide rail and compensated for any wear. Covering plastic, cost after amortization of the tool, considerably cheaper than other known solutions. Plastic covers are also considerably lighter than known covers, whereby the mass of the machine structure to be accelerated is reduced. Plastic covers can be made of only one material, which combines all the different requirements for the functions of the cover in itself. For example, a cover made of steel requires a sealing lip made of rubber, since steel has too little spring effect to achieve a sealing effect with respect to the guide rail.
Die Abdeckhaube ist vorteilhaft durch ein Kunststoff-Strangpressprofil gebildet, das auf die Führungsschiene rastend aufgesteckt oder über das stirnseitige Schienenende auf die Führungsschiene aufgeschoben ist. The cover is advantageously formed by a plastic extruded profile which is snapped onto the guide rail or pushed over the end-face rail end on the guide rail.
Weitere Vorteile der Erfindung ergeben sich aus den Ansprüchen, der Beschreibung und der Zeichnung. Ebenso können die vorstehend genannten und die noch weiter aufgeführten Merkmale je für sich oder zu mehreren in beliebigen Kombinationen Verwendung finden. Die gezeigte und beschriebene Ausführungsform ist nicht als abschließende Aufzählung zu verstehen, sondern hat vielmehr beispielhaften Charakter für die Schilderung der Erfindung. Further advantages of the invention will become apparent from the claims, the description and the drawings. Likewise, the features mentioned above and the features listed further can be used individually or in combination in any combination. The embodiment shown and described is not to be understood as an exhaustive list, but rather has exemplary character for the description of the invention.
Es zeigen: Fig. 1 eine erfindungsgemäße Laserbearbeitungsmaschine; FIG. 1 shows a laser processing machine according to the invention; FIG.
Fig. 2 eine Seitenansicht eines entlang einer Führungsschiene verfahrbaren Fig. 2 is a side view of a movable along a guide rail
Schlittens der Laserbearbeitungsmaschine und einer mit dem Schlitten mitverfahrenden Abdeckhaube; und Fig. 3 eine stirnseitige Ansicht der auf der Führungsschiene verschiebbar geführten Abdeckhaube. Carriage of the laser processing machine and a mitverfahrenden with the carriage cover; and Fig. 3 is an end view of the slidably guided on the guide rail cover.
In Fig. 1 ist perspektivisch eine Bearbeitungsmaschine 1 dargestellt, welche den Aufbau einer Laserschneidmaschine als Ausführungsbeispiel einer Laserbearbei- tungsmaschine zeigt. Weitere Ausführungsbeispiele sind zum Beispiel eine Laserschweißmaschine oder eine kombinierte Stanz-/Laserschneidmaschine. Diese Bearbeitungsmaschine 1 weist beispielsweise einen CO2-Laser, Diodenlaser oder Fest- körperlaser als Laserstrahlerzeuger 2, einen verfahrbaren Laserbearbeitungskopf 3 und eine Werkstückauflage 4 auf. Im Laser 2 wird ein Laserstrahl 5 erzeugt, der mittels eines (nicht gezeigten) Lichtleitkabels oder (nicht gezeigter) Umlenkspiegel vom Laser 2 zum Bearbeitungskopf 3 geführt wird. Auf der Werkstückauflage 4 ist ein Werkstück 6 angeordnet. Der Laserstrahl 5 wird mittels einer im Bearbeitungskopf 3 angeordneten Fokussieroptik auf das Werkstück 6 gerichtet. Die Bearbeitungsmaschine 1 wird darüber hinaus mit Prozessgasen 7, beispielsweise Sauerstoff und Stickstoff, versorgt. Es können alternativ oder zusätzlich auch Druckluft oder anwendungsspezifische Gase vorgesehen sein. Die Verwendung der einzelnen Gase ist von dem Material des zu bearbeitenden Werkstücks 6 und von Qualitätsanforderun- gen an die Schnittkanten abhängig. Weiterhin ist eine Absaugeinrichtung 8 vorhanden, die mit einem Absaugkanal 9, der sich unter der Werkstückauflage 4 befindet, verbunden ist. Das Prozessgas 7 wird einer Prozessgasdüse 10 des Bearbeitungskopfes 3 zugeführt, aus der es zusammen mit dem Laserstrahl 5 austritt. Wie in Fig. 2 gezeigt, ist der Bearbeitungskopf 3 an einem entlang einer horizontalen Führungsschiene 11 verfahrbaren Schlitten 12 befestigt, der zwei auf der Führungsschiene 1 1 verfahrbar geführte Führungswagen 13a, 13b aufweist. Eine mit dem Schlitten 12 mitverfahrende Abdeckhaube 14 aus Kunststoff dient zum Abdecken des zwischen den beiden Führungswagen 13a, 13b befindlichen Schienenabschnitts der Führungsschiene 1 1 . Die Abdeckhaube 14 ist weder mit dem Schlitten 12 noch mit den Führungswagen 13a, 13b verbunden, sondern ein separates Teil, das zwischen den beiden Führungswagen 13a, 13b auf der Führungsschiene 1 1 verschiebbar geführt ist. Bei einer Verschiebung des Schlittens 12 wird die Abdeckhaube 14 jeweils von dem in Verschieberichtung hinteren Führungswagen in Verschieberich- tung mitgenommen. Wird also in Fig. 2 der Schlitten 12 beispielsweise nach rechts verschoben, so wird die Abdeckhaube 14 von dem linken Führungswagen 13a nach rechts mitgenommen. Wird der Schlitten 12 nach links verschoben, so wird die Abdeckhaube 14 von dem rechten Führungswagen 13b nach links mitgenommen. In Fig. 1, a processing machine 1 is shown in perspective, showing the structure of a laser cutting machine as an embodiment of a laser processing machine. Further exemplary embodiments are, for example, a laser welding machine or a combined punching / laser cutting machine. This processing machine 1 has, for example, a CO2 laser, diode laser or solid-state laser as laser beam generator 2, a movable laser processing head 3 and a workpiece support 4. In the laser 2, a laser beam 5 is generated, which is guided by means of a (not shown) optical fiber cable or (not shown) deflecting mirror from the laser 2 to the machining head 3. On the workpiece support 4, a workpiece 6 is arranged. The laser beam 5 is directed onto the workpiece 6 by means of a focusing optic arranged in the machining head 3. The processing machine 1 is also supplied with process gases 7, for example oxygen and nitrogen. Alternatively or additionally, compressed air or application-specific gases may be provided. The use of the individual gases depends on the material of the workpiece 6 to be machined and on the quality requirements of the cut edges. Furthermore, a suction device 8 is present, which is connected to a suction channel 9, which is located under the workpiece support 4. The process gas 7 is supplied to a process gas nozzle 10 of the machining head 3, from which it emerges together with the laser beam 5. As shown in FIG. 2, the machining head 3 is fastened to a carriage 12 which can be moved along a horizontal guide rail 11 and has two guide carriages 13a, 13b which are movably guided on the guide rail 11. A covering hood 14 made of plastic, which is entrained with the carriage 12, serves to cover the rail section of the guide rail 11 which is located between the two guide carriages 13a, 13b. The cover 14 is connected neither to the carriage 12 nor to the guide carriages 13a, 13b, but to a separate part, which is displaceably guided on the guide rail 11 between the two carriages 13a, 13b. During a displacement of the carriage 12, the cover 14 is in each case of the rear guide carriage in the direction of displacement in Verschieberich- taken along. If, for example, in FIG. 2 the carriage 12 is displaced to the right, for example, then the covering hood 14 is carried along to the right by the left guide carriage 13a. If the carriage 12 is moved to the left, the cover 14 is taken from the right guide carriage 13b to the left.
Wie in Fig. 3 gezeigt, umgreift die Abdeckhaube 14 die Führungsschiene 1 1 seitlich und deckt mit ihren beiden Seitenwänden 15 die seitlichen Laufflächen 16 der Führungsschiene 1 1 , entlang denen die Führungswagen 13a, 13b geführt sind, vollständig ab. Die Seitenwände 15 weisen nach innen stehende bzw. abgewinkelte Füh- rungsvorsprünge 17 auf, die in seitliche Führungsnuten 18 der Führungsschiene 1 1 eingreifen und darin verschiebbar geführt sind. Die Führungswagen 13a, 13b und die Abdeckhaube 14 sind also an unterschiedlichen Führungen der Führungsschiene 1 1 geführt. Die Abdeckhaube 14 ist vorzugsweise ein Kunststoff-Strangpressprofil, das mittels seiner Führungsvorsprünge 17 entweder von oben auf die Führungsschiene 1 1 rastend aufgesteckt oder über das stirnseitige Schienenende auf die Führungsschiene 1 1 aufgeschoben sein kann. As shown in Fig. 3, the cover 14 surrounds the guide rail 1 1 side and covers with its two side walls 15, the lateral running surfaces 16 of the guide rail 1 1, along which the carriages 13 a, 13 b are guided, completely. The side walls 15 have inwardly projecting or angled guide projections 17, which engage in lateral guide grooves 18 of the guide rail 1 1 and are guided displaceably therein. The carriages 13a, 13b and the cover 14 are therefore guided on different guides of the guide rail 1 1. The cover 14 is preferably a plastic extruded profile, which can be plugged by means of its guide projections 17 either from the top of the guide rail 1 1 latching or pushed over the end-side rail end on the guide rail 1 1.
Die Abdeckhaube 14 liegt, unter elastischer Aufspreizung der beiden freien Längsenden 19 ihrer Seitenwände 15, mit den Längsinnenkanten 20 der freien Längsen- den 19 an der Führungsschiene 1 1 an. Die Längsinnenkanten 20 bilden somit Dichtkanten bzw. Längsabstreifer, die durch die Rückstell kraft der elastisch aufgespreizten Längsenden 19 an die Führungsschiene 1 1 angedrückt werden. The cover 14 lies, with elastic spreading of the two free longitudinal ends 19 of its side walls 15, with the longitudinal inner edges 20 of the free Längsen- the 19 on the guide rail 1 1 at. The longitudinal inner edges 20 thus form sealing edges or Längsabstreifer which are pressed by the restoring force of the elastically spread longitudinal ends 19 of the guide rail 1 1.

Claims

Patentansprüche Patent claims
Werkzeugmaschine (1 ), insbesondere Laserbearbeitungsmaschine, mit einem entlang einer Führungsschiene (1 1 ) verfahrbaren Werkstück- oder Werkzeugschlitten (12), der mindestens zwei auf der Führungsschiene (1 1 ) geführte Führungswagen (13a, 13b) aufweist, und mit einer mit dem Schlitten (12) mitverfahrenden Abdeckhaube (14) zum Abdecken des zwischen den beiden Führungswagen (13a, 13b) befindlichen Schienenabschnitts der Führungsschiene (1 1 ), Machine tool (1), in particular laser processing machine, with a workpiece or tool carriage (12) which can be moved along a guide rail (1 1), which has at least two guide carriages (13a, 13b) guided on the guide rail (1 1), and with one with the Cover (14) moving along the carriage (12) to cover the rail section of the guide rail (1 1) located between the two guide carriages (13a, 13b).
dadurch gekennzeichnet, characterized,
dass die Abdeckhaube (14) ein nicht mit dem Schlitten (12) verbundenes Teil ist, das zwischen den beiden Führungswagen (13a, 13b) auf der Führungsschiene (1 1 ) verschiebbar geführt ist und bei einer Verschiebung des Schlittens (12) jeweils von dem in Verschieberichtung hinteren Führungswagen in Verschieberichtung mitgenommen wird. that the cover (14) is a part that is not connected to the carriage (12), which is slidably guided between the two guide carriages (13a, 13b) on the guide rail (1 1) and when the carriage (12) is displaced is taken along in the direction of displacement by the rear guide carriage.
Werkzeugmaschine nach Anspruch 1 , dadurch gekennzeichnet, dass die Abdeckhaube (14) die Führungsschiene (1 1 ) seitlich umgreift und mindestens seitliche Laufflächen (16) der Führungsschiene (1 1 ), an denen die Führungswagen (13) geführt sind, abdeckt. Machine tool according to claim 1, characterized in that the cover (14) surrounds the guide rail (1 1) laterally and covers at least lateral running surfaces (16) of the guide rail (1 1), on which the guide carriages (13) are guided.
Werkzeugmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abdeckhaube (14) an seitlichen Führungsnuten (18) der Führungsschiene (1 1 ) verschiebbar geführt ist. Machine tool according to claim 1 or 2, characterized in that the cover (14) is slidably guided on lateral guide grooves (18) of the guide rail (1 1).
Werkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckhaube (14) an den freien Längsenden (19) ihrer beiden Seitenwände (15) jeweils einen Längsabstreifer aufweisen, der an der Führungsschiene (1 1 ) anliegt. Machine tool according to one of the preceding claims, characterized in that the cover (14) each has a longitudinal wiper at the free longitudinal ends (19) of its two side walls (15), which rests on the guide rail (1 1).
5. Werkzeugmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die Längsabstreifer jeweils durch eine Längsinnenkante (20) der Seitenwände (15) der Abdeckhaube (14) gebildet sind. 5. Machine tool according to claim 4, characterized in that the longitudinal wipers are each formed by a longitudinal inner edge (20) of the side walls (15) of the cover (14).
6. Werkzeugmaschine einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckhaube (14) unter elastischer Aufspreizung der beiden freien Längsenden (19) ihrer Seitenwände (15) an der Führungsschiene (1 1 ) anliegt. 6. Machine tool according to one of the preceding claims, characterized in that the cover (14) rests on the guide rail (1 1) with the two free longitudinal ends (19) of its side walls (15) being elastically expanded.
7. Werkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckhaube (14) aus Kunststoff gebildet ist. 7. Machine tool according to one of the preceding claims, characterized in that the cover (14) is made of plastic.
8. Werkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckhaube (14) durch ein Strangpressprofil gebildet ist. 8. Machine tool according to one of the preceding claims, characterized in that the cover (14) is formed by an extruded profile.
9. Werkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckhaube (14) auf die Führungsschiene (1 1 ) rastend aufgesteckt oder über das stirnseitige Schienenende auf die Führungsschiene (1 1 ) aufgeschoben ist. 9. Machine tool according to one of the preceding claims, characterized in that the cover (14) is plugged onto the guide rail (1 1) in a latching manner or is pushed onto the guide rail (1 1) via the front end of the rail.
PCT/EP2014/067658 2013-09-17 2014-08-19 Machine tool with a cover hood which is guided in a movable manner on a slide guiding rail WO2015039824A1 (en)

Priority Applications (3)

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KR1020167009122A KR102110012B1 (en) 2013-09-17 2014-08-19 Machine tool with a cover hood which is guided in a movable manner on a slide guiding rail
CN201480051209.9A CN105556143B (en) 2013-09-17 2014-08-19 Toolroom machine with the housing that can be movably directed on slide guided way
US15/072,568 US10265820B2 (en) 2013-09-17 2016-03-17 Machine tool having a covering hood guided in a displaceable manner on a slide guide rail

Applications Claiming Priority (2)

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DE102013218598.7 2013-09-17
DE102013218598.7A DE102013218598B4 (en) 2013-09-17 2013-09-17 Machine tool with a slidably guided on a carriage guide rail cover

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US15/072,568 Continuation US10265820B2 (en) 2013-09-17 2016-03-17 Machine tool having a covering hood guided in a displaceable manner on a slide guide rail

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CN (1) CN105556143B (en)
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KR20170087610A (en) * 2016-01-21 2017-07-31 삼성전자주식회사 Apparatus for cutting a wafer

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DE19739711A1 (en) * 1997-09-10 1999-03-11 Eitec Fuehrungsbahnschutz Syst Scraper for guides
JP2001263350A (en) * 2000-03-22 2001-09-26 Thk Co Ltd Dustproof device for linear guiding device

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KR102110012B1 (en) 2020-05-12
CN105556143A (en) 2016-05-04
KR20160055844A (en) 2016-05-18
US20160193707A1 (en) 2016-07-07
DE102013218598A1 (en) 2015-04-02
US10265820B2 (en) 2019-04-23
CN105556143B (en) 2018-01-02

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